Cellular respiration is the process by which the body breaks down sugar like glucose, to release ATP, which is an energy storing molecule. This is how the body gets energy from food.
 
        
                    
             
        
        
        
Is spread from one person to another through a variety of ways that include: contact with blood and bodily fluids; breathing in an airborne virus; or by being bitten by an insect.
        
                    
             
        
        
        
A                         B
Absolute Dating   =Method using properties of atoms in rocks and other objects to determine their ages.
Extinct	=When there are no longer any living members of a species.
Radiometric	=Method of dating rocks when the amounts of parent and daughter materials are measured.
idk if that is what u wanted
 
        
             
        
        
        
Answer:
Option B
Explanation:
Artificial selection is influencing of inheritance of any trait . in this limited options are given to allow a species to mate and produce offspring
In genetic code editing directly genes are edited. 
Hence, option B is correct
 
        
             
        
        
        
Answer:
Sedimentary rocks were used to construct the time scale. 
Hope it will help :)